GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

176

15

78,828

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16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,585

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,025

by: bb

29 Aug 2025, 13:27

ER

If x 0, is xy > 0? (1) x > 0 (2) 1/x < y

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

19 Jun 2015, 01:58

13

6

6,241

by: BelalHossain046

13 Mar 2019, 09:24

ER

A set S={10,1,5,a,b,6,c} where a,b&c are different positive integers,

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kiran120680

13 Mar 2019, 02:25

11

12

4,125

by: GMATBusters

25 Mar 2019, 08:41

ER

R1 and R2 are two rectangular tanks. Which one of them has a greater

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

amanvermagmat

14 Mar 2018, 22:44

4

7

1,969

by: bumpbot

23 Apr 2019, 12:51

ER

Can the positive integer q be written as the sum of three different

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

10 Dec 2017, 01:22

5

7

3,225

by: Bunuel

27 May 2019, 21:33

ER

Does line k pass through center of the circle? (1) The circle inters

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

02 Apr 2019, 03:23

3

5

2,963

by: KarishmaB

04 Jun 2019, 23:47

ER

If X and Y are positive integers, is X greater than Y?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

18 Jul 2016, 08:25

5

10

5,335

by: Stepk1386

06 Jun 2019, 14:47

ER

Is x < y ? (1) y/x > x/y (2) y > 100

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

goodyear2013

18 Apr 2014, 10:04

9

4

3,807

by: CrackverbalGMAT

12 Jun 2019, 05:26

ER

The product of 4 consecutive odd integers is negative. What is the lar

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

MathRevolution

17 Jul 2018, 01:11

5

6

2,153

by: CareerGeek

14 Jun 2019, 23:49

ER

If x is an integer, is x ≤ 11? (1) 7x < 77 (2) 190 - 20x <10

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

GloryBoy92

16 Jun 2019, 02:48

3

8

1,620

by: Debashis Roy

17 Jun 2019, 09:03

ER

Is x > x^2?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

rxs0005

24 Jan 2011, 08:38

9

10

4,452

by: bumpbot

24 Jun 2019, 04:54

ER

If ab < ac, which is greater b or c ? (1) a < 0 (2) c < 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Riju1191

01 Jan 2011, 12:48

7

12

8,554

by: bumpbot

24 Jun 2019, 15:41

ER

X, Y and Z are positive integers, and X+2Y+2Z=13. Z=?

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

rajareena

15 May 2012, 22:26

6

7

5,627

by: bumpbot

27 Jun 2019, 07:45

ER

Two players are to be selected from a football team which consists of

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

souvonik2k

29 Oct 2017, 10:12

9

3

2,489

by: IanStewart

27 Jul 2019, 09:47

ER

A number w with two digits to the right of the decimal point is multip

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Xin Cho

08 Aug 2019, 11:55

8

6

2,060

by: IanStewart

10 Aug 2019, 07:51

ER

At a particular school, 60 male students play sports. How many male st

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

06 Apr 2016, 02:11

11

8

3,707

by: bumpbot

20 Aug 2019, 09:32

ER

What is the equation of the line L?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

vaibhav1221

02 Sep 2019, 00:14

4

12

2,731

by: vanam52923

02 Sep 2019, 23:10

ER

On each lab that René completed he received either 100 points or 85 po

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

14 Apr 2015, 04:49

9

11

5,539

by: bumpbot

06 Sep 2019, 04:24

ER

Is m^2n + mn^2 = 0 ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

14 Jul 2015, 00:55

23

18

5,004

by: bumpbot

07 Sep 2019, 01:56

ER

Is y a positive number? (1) 33y > 44y (2) y + 1 is positive.

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

14 Aug 2019, 01:27

4

1,347

by: Bunuel

10 Sep 2019, 01:46

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If d and g are integers, is d + g an even integer? (1) d is an even

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

14 Aug 2019, 01:33

3

7

2,451

by: rishab0507

10 Sep 2019, 12:45

ER

In the xy-plane above, is angle QPR a right angle? (1) Line segment P

Sub 505 (Easy) | Coordinate Plane, Geometry

Sub 505 (Easy) | Coordinate Plane, Geometry hide tags

Bunuel

14 Aug 2019, 01:30

5

2,140

by: Bunuel

12 Sep 2019, 20:44

ER

If n and m are integers, is nm odd? (1) n + 1 = m (2) m/n is an even

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

15 Aug 2019, 01:14

3

2,558

by: Bunuel

17 Sep 2019, 02:36

ER

A line segment parallel to the second-smallest side of a right triangl

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Sajjad1994

15 Aug 2019, 00:31

2

3

1,556

by: Bunuel

17 Sep 2019, 02:54

ER

At a store, the range of the prices in Group A of items is a, and the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

15 Aug 2019, 01:51

3

1,140

by: Bunuel

17 Sep 2019, 04:27

ER

A box contains only pens, pencils, and pads. If an item is randomly se

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

16 Aug 2019, 01:47

6

3,425

by: Bunuel

17 Sep 2019, 05:10

ER

A right triangle has two legs of equal length. What is the perimeter,

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Sajjad1994

15 Aug 2019, 00:28

1

4

1,396

by: Kinshook

17 Sep 2019, 07:02

ER

If by agreement a service department must reply to any customer inquir

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

16 Aug 2019, 03:00

1

4

1,030

by: Bunuel

18 Sep 2019, 01:06

ER

In the figure above, if the area of square region B is 4, what is the

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

19 Aug 2019, 00:56

1

4

1,888

by: Bunuel

18 Sep 2019, 01:23

ER

In the rectangular coordinate system above, if AB < BC, is the area of

655-705 (Hard) | Coordinate Plane, Geometry

655-705 (Hard) | Coordinate Plane, Geometry hide tags

Bunuel

20 Aug 2019, 01:51

3

4

2,295

by: Bunuel

19 Sep 2019, 01:47

ER

What is the area of the circle above with center O?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

20 Aug 2019, 02:28

4

8

2,114

by: Bunuel

19 Sep 2019, 02:34

ER

A box contains blue and purple marbles only. What is the

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shrive555

23 Oct 2010, 22:29

3

9

4,972

by: bumpbot

24 Sep 2019, 06:58

ER

Is x > 0 ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

rxs0005

22 Jan 2011, 07:28

6

12

6,003

by: bumpbot

25 Sep 2019, 05:19

ER

Is a^2 + a > -b^2?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Creeper300

07 Nov 2010, 13:39

9

7

4,538

by: bumpbot

25 Sep 2019, 05:20

ER

Is k < 0? (1) |2k + 5| = 3k + 1 (2) |k - 2| = 7k

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btrg

16 Apr 2019, 20:25

11

5

2,774

by: Bunuel

21 Oct 2019, 20:38

ER

How many 5 existed in the 11 numbers?

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

MathRevolution

26 Jul 2016, 18:34

4

12

3,358

by: bumpbot

31 Oct 2019, 09:47

ER

Barbara spends $95 on books. She buys two different kinds of books: no

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

09 Sep 2015, 00:47

5

8

3,237

by: bumpbot

11 Nov 2019, 18:57

ER

What is the value of a + b/(ab)^1/2? (1) a is 4 times b.

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Sajjad1994

22 Jan 2020, 00:39

8

11

2,300

by: Bunuel

22 Jan 2020, 09:26

ER

If z is a positive integer, does z have more than 2 positive integer

505-555 (Easy) | Multiples and Factors, Number Properties

505-555 (Easy) | Multiples and Factors, Number Properties hide tags

Bunuel

27 Jan 2020, 02:49

3

1,312

by: GMATinsight

27 Jan 2020, 07:43

ER

If |a - b| = |b - c| = 2 , what is |a - c| ?

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

AndreG

09 Oct 2010, 04:09

20

11

6,773

by: bumpbot

06 Feb 2020, 22:00

ER

For the system of equations given, what is the value of z?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

11 Sep 2012, 04:46

3

8

21,256

by: TheUltimateWinner

09 Feb 2020, 10:57

ER

If a, b and c are distinct positive integers, what is the value of (a

805+ (Hard) | Exponents

805+ (Hard) | Exponents hide tags

Bunuel

06 Aug 2017, 00:57

16

9

4,227

by: ScottTargetTestPrep

10 Feb 2020, 17:55

ER

Is x > y ? (1) (x - y)(x - y) > 0 (2) y > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

sang5650

31 Mar 2010, 15:34

3

7

5,017

by: bumpbot

19 Feb 2020, 07:17

ER

If a line K passes through (1, 5) and the line K intersects with the

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

29 Jan 2020, 01:49

2

5

1,973

by: GMATinsight

21 Feb 2020, 03:46

ER

Is the positive integer N divisible by 4?

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

Bunuel

25 Feb 2020, 01:59

2

3

2,252

by: MathRevolution

29 Feb 2020, 11:23

ER

What is the area of triangle BDC?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

GMATBusters

07 Dec 2019, 19:22

8

17

5,049

by: ayushkumar22941

08 Mar 2020, 20:49

ER

The lengths of the sides of triangle ABC are such that AB = x + 2, BC

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

25 Feb 2015, 03:21

7

10,488

by: bumpbot

13 Mar 2020, 07:23

ER

A school has 60 students. Each student studies either Cantonese or Fre

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

16 Jul 2015, 01:19

4

11

8,520

by: Kinshook

18 Mar 2020, 09:45

ER

If a > b, is (a + b) an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

GMATBusters

08 Dec 2018, 10:04

5

1,929

by: GMATinsight

23 Mar 2020, 00:11

ER

Is integer x odd? (1) 2x+1 is odd (2) x/2 is even

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Ravixxx

30 Mar 2020, 23:59

2

4

4,765

by: CrackverbalGMAT

01 Apr 2020, 00:29

ER

A natural number p, when divided by a certain divisor q, gives

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DHAR

30 Jul 2017, 20:18

59

8

10,195

by: WheatyPie

02 Apr 2020, 11:31